DE102019112685A1 - Luminaire with protected bulbs - Google Patents

Abstract

A luminaire (1) has lighting means, a luminaire housing (1) with an area (25) for receiving the lighting means (130), the area (25) being surrounded by a seal (40), a cover (70, 80) ), which stretches over the area (25) and rests against the seal (40) in a closed circumferential manner in order to form a closed space (B) with the luminaire housing (10), the cover (70, 80) influencing optics of the light of the lighting means (130), and a frame-like retaining element (50), the retaining element (50) being connected to the lamp housing (1) in such a way that the cover (70, 80) is in contact with the seal (40 ) presses.

Description

The present invention relates to a luminaire which has lighting means which are to be protected efficiently from external influences. In particular, the present invention relates to what is known as a high bay light.

Highbay lights are understood to mean lights that are used, for example, to illuminate larger halls or industrial complexes. In this application, the luminaires are usually mounted at a relatively large distance from the floor, which is why there is a requirement that the luminaire generates light with high intensity, which is then emitted onto the area below, for example a hall. Accordingly, relatively powerful lighting means are used in such lights, which then have to be stored in a suitable manner, whereby care must be taken that on the one hand the heat that occurs during operation of the lighting means is dissipated in a suitable manner and on the other hand the lighting means is protected from external influences, in particular Moisture and / or dust are protected.

A lamp of the type described above is, for example, from WO 2014/086770 A1 known to the applicant. The luminaire described here is essentially formed by a die-cast aluminum body that has large-area cooling rib structures and cooling channels for dissipating the high levels of heat generated during operation of the lamps. Operating means are positioned centrally between two elongated LED arrangements, the design of the die-cast body being such that air can also flow around a centrally arranged housing in which the operating means are accommodated in order to allow sufficient heat dissipation. By using appropriate cooling air openings, a thermal decoupling between the housing for the equipment and the areas of the lamp body in which the lighting means are arranged is largely achieved.

The luminaire known in the prior art has proven itself many times and is characterized by its excellent light output and, at the same time, high operational reliability. However, the cost of materials is relatively high due to the use of the die-cast aluminum body and the lamp itself consists of several parts, which on the one hand leads to high material costs and on the other hand to increased effort in the assembly of the lamp.

The present invention is therefore based on the object of specifying a possibility of providing a lamp that is comparable in terms of its photometric properties, in which efficient protection of the lighting means against external influences is guaranteed, but the cost of manufacturing and mounting the lamp is reduced.

The object is achieved by a lamp which has the features of claim 1. Advantageous further developments of the invention are the subject of the dependent claims.

In the luminaire according to the invention it is provided that the luminaire housing has an area for receiving the illuminant, which is surrounded by a seal all the way round and closed. Furthermore, a cover is provided which extends over the area for receiving the lighting means and rests against the seal in a closed circumferential manner in order to form a closed space, the cover having optics for influencing the emitted light. Furthermore, a holding element is provided which is designed in such a way that it can be connected to the lamp housing and in this case presses the cover into contact with the seal. On the one hand, the space for the lighting means is efficiently enclosed by the interaction between the cover and the seal; on the other hand, the light output of the lamp can be influenced in the desired manner by using suitable optics.

• • ein Leuchtmittel,
• • ein Leuchtengehäuse mit einem Bereich zur Aufnahme des Leuchtmittels, wobei der Bereich umlaufend geschlossen mit einer Dichtung umgeben ist,
• • eine Abdeckung, welche sich über den Bereich zur Aufnahme des Leuchtmittels spannt und umlaufend geschlossen an der Dichtung anliegt, um mit dem Leuchtengehäuse einen geschlossenen Raum zu bilden, wobei die Abdeckung eine Optik zum Durchtritt des Lichts der Leuchtmittel aufweist,
• • ein Halteelement, wobei das Halteelement derart mit dem Leuchtengehäuse verbunden ist, dass der Rahmenabschnitt die Abdeckung in Anlage an die Dichtung drückt.

According to the present invention, a lamp is proposed which has:

• • a lamp,
• • a luminaire housing with an area for accommodating the light source, the area being enclosed all the way round with a seal,
• • a cover which stretches over the area for receiving the illuminant and rests against the seal in a completely closed manner in order to form a closed space with the luminaire housing, the cover having optics for the passage of the light from the illuminant
• A holding element, the holding element being connected to the lamp housing in such a way that the frame section presses the cover into contact with the seal.

It is preferably provided that the luminaire housing has a further area for receiving electrical and / or electronic luminaire components, this further area also being surrounded by a further seal in a closed circumferential manner. In this case, it is then also provided that the lamp a has further cover, which spans over the further area and rests all around closed on the further seal in order to form a closed space with the luminaire housing, in which case the holding element also presses the further cover against the seal in this case. Both holding elements are preferably formed integrally with one another.

The cover having the optics for the passage of the light from the lighting means is of course preferably designed in such a way that it consists of a light-permeable material and accordingly enables light to be emitted. If, however, another space enclosed in the manner according to the invention is used to accommodate, for example, other electronic components such as operating devices or the like, the corresponding cover can also be designed in the form of an opaque hood.

According to a variant, the holding element and the assigned cover can be formed integrally with one another, preferably manufactured in a two-component injection molding process. However, it is preferably provided that the cover is present as a separate component and the holding element has support or contact areas via which the cover is pressed into contact with the seal. These support or contact areas can be distributed circumferentially, preferably evenly distributed or provided closed on the circumference, the support or contact areas then extending in a plane which is oriented transversely or orthogonally to a pressing direction for pressing the cover into contact with the seal.

The optics assigned to the cover can either be an integral part of the cover or in turn be in the form of a separate component which is held by the cover. The optics can in particular have a multiplicity of lenses or a lens array, although the use of other light-scattering or light-influencing structures such as prisms or the like would also optionally be conceivable.

Preferably, it can also be provided that the cover or an optical system held by the cover has holding structures which are in operative connection for the defined relative positional positioning between the cover and the illuminant.

This can be one or more peg-like positioning pins which engage in correspondingly corresponding openings in the lighting means.

The cover preferably has a circumferential edge which is in circumferentially closed, sealing contact with the seal, preferably tapers towards the seal in order to be in sealing contact with it and in particular to dip into the seal. The circumferential edge can in particular have a U-shaped cross section, with an outer leg tapering towards the seal, a connecting leg running transversely thereto and an inner leg connecting the connecting leg to the further cover, the connecting leg preferably forming a support area of the cover, i.e. with the holding element cooperates in such a way that it presses the cover against the seal in the mounted state on the lamp.

According to a further preferred embodiment, the luminaire housing has one or more passage openings which can be used for the flow of cooling air and which preferably extend adjacent and in particular at the edge to the areas for receiving the illuminants or other luminaire components. In this case, it is provided in particular that the holding element has through openings corresponding to and corresponding to the through openings of the housing, so that a total of several cooling air ducts are formed which allow air to flow through. A circumferentially closed edge delimiting the through opening of the holding element preferably extends transversely to the section of the holding element that has it, preferably towards the through opening, in order to form a through channel with this or its edge, which is preferably completely closed laterally.

The lamp housing is preferably made from sheet metal, in particular in a deep-drawing process. Compared to solutions known from the prior art, the housing can thus be manufactured in a very simple and cost-effective manner, but nevertheless has all the structures and properties that are required to realize a luminaire with high and efficient light output.

• 1 die perspektivische Ansicht einer Leuchte mit einem erfindungsgemäßen Leuchtengehäuse;
• 2 eine weitere perspektivische Ansicht der Leuchte gemäß 1 von oben;
• 3 eine der 1 entsprechende Ansicht der Leuchte, wobei Abdeckungen der Leuchte entfernt wurden, um zu verdeutlichen, in welcher Weise die Leuchtenkomponenten an dem Gehäuse gelagert sind;
• 4 und 5 zwei Ansichten des erfindungsgemäßen Leuchtengehäuses;
• 6 und 7 zwei Ansichten eines rahmenartigen Halteelements der Leuchte;
• 8 eine Schnittdarstellung der Leuchte;
• 9 bis 11 Ansichten einer ersten Variante einer bei der Leuchte zum Einsatz kommenden Abdeckung für die Leuchtmittel;
• 12 bis 14 Ansichten einer zweiten Variante einer bei der Leuchte zum Einsatz kommenden Abdeckung für die Leuchtmittel;
• 15 und 16 Ansichten eines Bauteils zur Überbrückung der die Aufnahmebereiche des Leuchtengehäuses umgebenden Dichtungsstrukturen;
• 17 bis 19 Darstellungen zum Anbringen einer die Aufnahmebereiche jeweils umgebenden Dichtung bei der Leuchte und;
• 20 und 21 Ansichten eines weiteren Ausführungsbeispiels einer Leuchte mit einem erfindungsgemäß ausgestalteten Leuchtengehäuse.

The invention will be explained in more detail below with reference to the accompanying drawing. Show it:

• 1 the perspective view of a lamp with a lamp housing according to the invention;
• 2 a further perspective view of the lamp according to FIG 1 from above;
• 3 one of the 1 Corresponding view of the lamp, with covers of the lamp have been removed to show how the lamp components are mounted on the housing;
• 4th and 5 two views of the lamp housing according to the invention;
• 6th and 7th two views of a frame-like holding element of the lamp;
• 8th a sectional view of the lamp;
• 9 to 11 Views of a first variant of a cover for the illuminants used in the luminaire;
• 12 to 14th Views of a second variant of a cover for the illuminants used in the luminaire;
• 15th and 16 Views of a component for bridging the sealing structures surrounding the receiving areas of the lamp housing;
• 17th to 19th Representations for attaching a seal surrounding the receiving areas in the lamp and;
• 20th and 21st Views of a further exemplary embodiment of a lamp with a lamp housing designed according to the invention.

The following explained in more detail and in the figures with the reference number 1 As already mentioned, the lamp according to the invention provided is intended to form a so-called highbay lamp which, as a compact but powerful lamp, is suitable for use as a hall lamp, for example. As with the one in the WO 2014/086770 A1 The lamp described by the applicant is therefore provided, the lamp according to the invention shown here 1 to be arranged at a relatively large distance from the floor, whereby light with high intensity is to be generated, which is then radiated onto the area below - for example a hall.

The basic arrangement of the components responsible for generating the light corresponds to the arrangement as it is for the luminaire WO 2014/086770 A1 is provided. This means that in a central area of the lamp 1 one or more operating devices are positioned, with lighting means being arranged on both sides of the central area, which are responsible for light generation and light emission. The concept according to the invention can, however, also be applied to other lamp shapes, as will be explained at a later point in time.

It should also be pointed out that in the illustrated embodiment, two differently designed covers are shown which cover the lighting means and influence the light emitted by the lighting means. The representation of two different covers, however, only serves to represent the various possibilities for realizing the optical system. In reality, the covers and optical systems for both illuminants will preferably be made identical.

The essential components of the lamp according to the invention 1 are a tub-shaped luminaire housing 10 as well as one on the lamp housing 10 attached retaining element 50 , which may be combined with optical covers 70 and 80 Areas of the housing 10 encloses in which electronic components of the lamp 1 are arranged to generate light. As with the prior art luminaire, the luminaire according to the invention is also divided into three areas, a central area running centrally along a longitudinal direction, which is used to accommodate an operating device, and two light-emitting areas formed on both sides of the central area in which the illuminants as well as the optical components assigned to the lighting means for the light output are arranged. The light output is therefore in accordance with the view 1 over two essentially rectangular side areas of the lamp 1 , through which light is emitted with high intensity.

A suspension or assembly of the light 1 can according to the example shown using brackets 150 done on the two end faces of the central area on the back of the housing 10 are connected to this. The temples 150 are designed in such a way that they enable suspension elements to be attached or attached. Of course, other mounting solutions would also be available for the luminaire 1 conceivable.

First of all, the more detailed design of the luminaire housing is intended below 10 be explained, which is a central component of the lamp according to the invention 1 represents.

As here in particular the representations of 1 to 5 can be removed is the luminaire housing 10 Trough-shaped with an approximately square housing base in the illustrated embodiment 11 , from which a laterally circumferential housing wall extends 12 downwards or in the light emission direction of the luminaire 1 extends, with case back 11 and housing wall 12 limit a luminaire space. The case 10 is preferably made of sheet metal and is produced in a deep-drawing process, so that this is produced easily and inexpensively can be. The structural elements of the housing described in more detail below 10 can therefore be formed in a relatively simple manner in a single work step; a punching step may be required before or after deep drawing in order to form the through openings and further openings described in more detail below.

The primary task of the case back 11 it is a flat recording or storage of the components of the luminaire that are responsible for generating and emitting light 1 to enable. The housing is accordingly 10 designed such that the housing bottom 11 at its the interior of the housing 10 the side facing three essentially flat areas forms a central flat area 20th as well as two lateral flat areas 25th . The central area 20th is for the inclusion of an in 3 recognizable control gear 120 for example provided in the form of a converter. In terms of its width, it is essentially the same as the width of the operating device 120 adjusted and accordingly dimensioned a little narrower than the two side receiving areas 25th . All three areas 20th and 25th are here as defined depressions in the ground 11 of the housing 10 educated.

The two side recording areas 25th are used to store one or more LED boards 130 , through each of which a large-area light source is formed. When presented according to 3 the arrangement of the LED board (s) 130 is only shown on the left-hand side, whereas the board was not shown on the right-hand side around the flat receiving area 25th to show. All three recording areas 20th and 25th are in this case - apart from the depressions still described below - designed to be planar to support either the operating device 120 or the LED boards 130 to enable. This ensures that the heat is transferred to the bottom of the housing during operation 11 allows cooling of the luminaire components 120 , 130 or the heat dissipation is improved.

Fastening the control gear 120 as well as the LED boards 130 on the lamp housing 10 can then take place, for example, with the aid of a screw connection, the housing base for this purpose 11 in the reception areas 20th or. 25th with knobs or blind hole structures protruding outward with respect to the luminaire space 27 is trained. These sack lock structures 27 are also part of the deep-drawing of the luminaire housing 10 created and allow that when screwing in the screws 135 the thread of which is cut into the corresponding sheet metal material of the blind hole structure and thus a secure fastening is achieved without the housing bottom 11 through the screw 135 is penetrated. This solution is advantageous in that it also applies to the fastening of the lighting components 120 , 130 the case back 11 can be made sealed. In principle, however, it would also be conceivable to subsequently attach corresponding blind hole structures to the housing base 11 to be welded or soldered on. Also the pressing in of a corresponding component, which is then screwing the luminaire components 120 , 130 with the case 10 made possible, would be conceivable, with a solution preferably being sought in all cases which enables the interior of the luminaire to be sealed to the outside in these areas.

Only the central recording area 20th has a slightly larger opening on one end 26th on, through which the passage of a power supply cable for powering the operating device 120 is made possible. In this case they are on the back of the case 10 appropriate sealing measures, for example in the form of a spout 140 provided, which allow the sealed leading out of the - not shown in detail - power supply cable, so that all three receiving areas 20th or. 25th when the luminaire is installed 1 are sealed to the rear.

An essential property of the lamp according to the invention 1 also consists in that the control gear 120 and the LED bulbs 130 are not arranged together in a single, tightly enclosed space, but instead in each of the flat receiving areas 20th or. 25th Corresponding receiving spaces are formed, each of which is sealed for itself, and either the converter 120 or the LED light sources 130 record, tape. The separate arrangement of these luminaire components 120 , 130 in three separate rooms this opens up the possibility of thermally decoupling the areas from one another on the one hand and allowing cooling air to flow through in the spaces between two adjacent receiving rooms on the other hand.

It can be seen here that on both sides of the central receiving area 20th three elongated through openings each 30th in the case back 11 are formed, which are part of the cooling air channels described in more detail below. Also on the outside of the two recording areas 25th are three through openings each 30th designed so that both sides of the central receiving area 20th for the control gear 120 as well as the recording areas 25th for the LED bulbs 130 each cooling air can flow along. The through openings 30th are each closed by a circumferential Edge that extends transversely to the section of the lamp housing that has it 10 extends. The through openings 30th which, of course, could also be designed differently with regard to their length and possibly shape, also bring about a material reduction in the area between the central receiving area 20th and the side receiving areas 25th so that there is a certain thermal decoupling and the risk is reduced that, for example, that of the LED light sources 130 generated heat on the area 20th with the control gear 120 is transmitted.

The individual sealing of the three receiving areas 20th , 25th is made possible by having the appropriate areas 20th or. 25th are each surrounded circumferentially by a ring-like seal, which interacts with the retaining element or an optical cover described in more detail below. In the preferred embodiment shown, it is provided that the flat receiving areas 20th or. 25th are each surrounded circumferentially by a raised and / or recessed ring structure which is again formed integrally in the deep-drawing process and which serve to accommodate the seal. In particular, it can be provided that - like the sectional view of 8th can be removed - each receiving area from a wave-like sealing structure 35 is surrounded in a ring-like manner, which has a circumferential groove or depression 36 forms in which the seal 40 is recorded. The depression 36 thus forms a circumferential channel into which the sealing material can be introduced in a simple manner. This can be, for example, a corresponding PU foam that is used during the manufacture of the lamp 1 automated into the recess 36 can be injected. It is advantageous if the corresponding ring-like depressions 36 all extend within the same plane, since this facilitates the automated application of, for example, the liquid PU foam for sealing.

The wave-like cross-sectional shape prevents the applied sealing material from flowing away, which is located at the deep point of the wave-like sealing structure 35 collects and will harden slightly here accordingly. As an alternative to the aforementioned PU foam, however, other sealing materials or foams could also be used for realizing the seal 40 be used. For example, a strand of a corresponding sealing material could be inserted into the depressions 36 be inserted. In principle, the use of so-called structural sealing materials would also be conceivable, in which case the illustrated wave-like sealing structure may also be used 35 could be dispensed with. The formation of a simple circumferential groove for receiving the sealing material would also be conceivable. However, the wave-like structure also has the further advantage that it leads to an additional increase in the stability of the tub body.

It should be noted that despite the circumferential sealing of the three receiving areas 20th or. 25th an electrical connection between the central receiving area 20th and the two side areas 25th must be available to ensure that the control gear 120 the LED light sources 130 can be supplied with power in a suitable manner. For this purpose it is provided that the central area 20th at the hole 26th for feeding the external power supply cable on the opposite side on both sides via a channel-like recess 37 or a channel section with the two lateral areas 25th connected is. These depressions 37 or channel sections which are transverse to the sealing structures 35 run and interrupt them locally, can then be used, starting from the operating device 120 the power supply for the LEDs 130 required lines or cables in the neighboring area 25th to lead, a particularly preferred embodiment for this will be explained in more detail at a later point in time.

Before following in detail the sealing of the receiving spaces due to the interaction of the lamp housing 10 with the holding element 50 and the covers 70 or. 80 is explained, the design of the circumferential housing wall is also intended below 12 explained.

This consists - as already mentioned - of four from the housing base 11 extending side wall areas 13 , which are designed as part of the deep-drawing process in such a way that they stand out from the housing base 11 away and thus in the direction of light emission from the lamp 1 expand like a funnel. The deep-drawing process advantageously leads to the side wall areas 13 at the corners of the case 10 merge into one another in one piece and thus no further measures for connecting the wall areas 13 required are. This can be done on the side wall areas 13 the case 10 overall stabilizing structures 14th and 15th be embossed with the structures 15th also a handling of the lamp housing 10 facilitate. To these structures 14th , 15th better conceal and the stability of the case 10 to be able to additionally increase, it is also provided that the circumferential housing wall 12 at its edge area a horizontally outwardly projecting circumferential edge 16 having. This edge 16 runs in a plane that is parallel to the plane of the housing bottom 11 is aligned and gives the lamp 1 additionally a more harmonious overall appearance. Ultimately, then, that fulfills Luminaire housing 10 numerous important functions of the luminaire 1 and despite everything can be produced in a simple and inexpensive manner.

The following is now the sealing of the three receiving areas 20th , 25th for the control gear 120 around the LED bulbs 130 are explained in more detail. The case 10 represents these three areas 20th or. 25th surrounding seals 40 ready, however, requires the areas 20th , 25th covered accordingly to the lighting components 120 , 130 to protect against external influences, especially against dust and / or moisture.

Responsible for this task is the one already mentioned with the reference number 50 provided holding element, which is isolated in the 6th and 7th is shown and in the assembled state according to the sectional view of 8th with the luminaire housing 10 cooperates. The holding element 50 In the illustrated embodiment, however, it only acts with the central receiving area 20th for the lamp operating device 120 surrounding seal 40 directly together, the recording areas 25th for the LED bulbs 130 on the other hand, optics or light-permeable covers described in more detail below are sealed, but these are sealed by the holding element 50 be stored in such a way that they seal with the corresponding circumferential seals 40 work together.

So like them 6th and 7th show, there is the retaining element 50 initially from a circumferential, roughly the shape of the luminaire housing 10 corresponding and therefore square frame 51 , the middle area of an approximately hood-like cover 52 is overstretched. This dome or hood-like cover 52 is compared to the level of the bottom (corresponding to the in 8th mounted orientation shown) of the frame 51 slightly over, so that it forms a somewhat recessed receiving space A or a chamber, like the sectional view of FIG 8th can be taken. The height and also the width of the cover 52 can of course depending on the dimensions of the control gear 120 as well as other electrical or electronic operating components for operating the LED light sources 130 that are in the area of the control gear 120 are to be positioned. The use of an additional carrier would also be conceivable so that the components accommodated in this area can be stored in several levels. Ideally, however, the underside of the cover should be in the assembled state 52 not over the plane of the surrounding edge 16 of the housing 10 protrude. To the height of the receiving space A for the control gear 120 To enlarge, it is additionally provided in the illustrated embodiment that the plane of the central receiving area 20th compared to the two side receiving areas 25th is set back slightly. This can also be done in the context of deep drawing during the manufacture of the housing 10 be taken into account.

It is crucial that the hood-like cover 52 on their case back 11 facing area a circumferentially closed edge 53 or has an edge in the assembled state of the holding element 50 on the lamp housing 10 the seal 40 contacted, in particular - as shown - in the flexible material of the seal 40 immersed. This is common through the housing 10 and the retaining element 50 the central receiving space A is completely sealed, so that the operating device 130 is safely and reliably protected from external influences.

The attachment of the retaining element 50 on the housing 10 takes place here via a large number of screw connections, with the retaining element preferably produced by injection molding for this purpose 50 corresponding openings 55 or has cylinder-like reinforcements with openings, with holes 31 in the case back 11 of the luminaire housing 10 correspond. The holes 31 of the luminaire housing 10 lie outside the areas to be sealed 20th or. 25th which is why the case back is actually simple here 11 fully penetrating bores or openings can be used. Alternatively, however, the holes could 31 be provided on its back with the blind hole structures already explained above. Furthermore, on the holding element 50 also other through openings or locking structures for preferably releasable attachment to the luminaire housing 10 optionally be provided by means of separate fastening means, such as screws.

One of the previously described interaction between the cover 52 with the seal 40 Appropriate sealing is also for the two receiving areas 25th for the LED bulbs 130 provided, although not the holding element in the illustrated embodiment 50 itself in direct contact with the seals 40 occurs, but this function in each case through a translucent cover 70 or. 80 is fulfilled. These covers 70 , 80 are in the area on both sides of the hood-like cover 52 openings formed 56 of the frame 51 , which ultimately are the light emission openings of the frame-like holding element 50 form, received and are by the holding element 50 held and positioned so that it is with the seals 40 can work together. 8th shows two different variants of the translucent covers 70 , 80 , each individually in the 9 to 11 respectively 12 to 14th are shown. In both cases, the cover also serves to influence the light emitted by the LEDs or to hold a corresponding optical system.

Basically, in both variants, the cover is again hood-like or dome-like 70 and 80 provided that this has a flat light emission area 71 , 81 has, the circumferential of a U-shaped edge 72 , 82 is surrounded, the one to the seal 40 tapering legs 73 , 83 , a connecting leg extending transversely thereto and a connecting leg to the remainder of the cover 70 , 80 having connecting inner legs, the U-shape on the one hand the stability of the cover 70 , 80 increased and on the other hand the outer leg 73 , 83 is directed upwards and a sealing edge encircling in a plane 74 , 84 forms. The function of this sealing edge 74 , 84 is comparable to the edge 53 the cover 52 . This means that the edge dips in the assembled state 74 or 84 in the circumferential seal 40 on the case back 11 of the luminaire housing 10 and thereby completely encloses the corresponding receiving area 25th for the LED bulbs 130 . In this case, too, a completely sealingly enclosed space is thus obtained, in which the LED lighting means are now 130 are included.

The required holder or positioning of the cover 70 or 80 is through the retaining element 50 realized which the two openings 56 surrounding an inwardly protruding support edge 57 or has a support web. As shown in the sectional view 8th can be removed, the covers are 70 or. 80 then with their lower edge of the U-shaped rim 72 floating on the support edge 57 on, the dimensions of the retaining element 50 are chosen such that it is ensured that the cover 70 or. 80 actually sealing with the respective seal 40 cooperates. The support edge 57 extends here in a plane transversely or orthogonally to a pressing direction for pressing the cover 70 , 80 in contact with the seal 40 . Instead of the illustrated all-round closed support edge 57 could also be provided in sections formed support or bearing areas, which are then distributed, preferably evenly distributed on the circumference of the openings 56 are arranged.

Some play in the storage of the cover 70 or. 80 however, it is desired as slight transverse displacements due to different temperature expansion coefficients in the materials of the luminaire 1 can thereby be absorbed. In the illustrated embodiment, it is the cover 70 or. 80 not rigid with the holding element 50 or the luminaire housing 10 connected. Instead, when installing the lamp 1 just the cover 70 or. 80 in the holding element 50 inserted accordingly and then in the manner described above with the lamp housing 10 screwed.

The ones in the 9 to 14th shown two variants of the cover 70 or. 80 differ primarily with regard to the mounting of further optical elements that influence the LED light sources 130 given light are provided. In both cases, this is the area of the light-emitting surface of the respective cover 70 , 80 TIR lenses positioned opposite back 90 which, in a known manner, focus the light emitted by an LED and emit it in a directed manner towards the bottom. It is ideally provided that each LED or LED cluster of the illuminant 130 a lens 90 is used, the LED or the associated LED cluster then being inserted into the top of the lens 90 trained recess 91 intervenes. This arrangement of the lens 90 with regard to the associated LED and the design of the lens 90 ensures that the light emitted by the LEDs in almost all directions is influenced in the desired manner and used for efficient light emission.

In the 9 to 11 shown variant of the cover 70 is provided that the lenses 90 integral part of the cover 70 are and are integrally formed in a corresponding manner on the rear side. In this case there is cover 70 preferably consistently made of the same translucent material, although it would also be conceivable to form those components through which light passes or which are intended to influence the light from a different material than the rest of the cover 70 .

The ones in the 12 to 14th The variant shown, however, represents a particularly preferred embodiment for the cover 80 there is now the cover 80 the additional storage of a separate component 88 which serves the lenses 90 includes. For this purpose, the cover 80 on the back opposite the light exit side two circumferential webs 85 and 86 on, with the web 85 with its upper edge a ring-like support surface for the lens plate 88 and the slightly higher circumferential web 86 sideways the plate 88 encompasses with little play. The advantage of this solution is that the lens plate 88 compared to coverage 80 can easily wander to the side or slight shifts are possible. This opens up the possibility that the sealing edge 84 the cover 80 permanently in contact with the seal 40 is and in spite of everything that Lens plate 88 can migrate along with the LEDs if necessary. Relative shifts caused by temperature can thereby be better absorbed and a permanently correct positioning of the lenses 90 with regard to the LEDs is ensured. Correct alignment of the lenses 90 with regard to the LEDs can also be supported by the fact that on the lens plate 88 Not shown in detail peg-like positioning or centering pins are formed, which in corresponding openings of the LED board 130 intervention. In the case back 11 of the luminaire housing 10 can use corresponding bulges for this 28 be provided that allow the introduction of a corresponding centering pin, but despite everything, the flat support of the LED board 130 on the recording area 25th don't hinder. Such positioning elements can of course also be used for the cover 70 can be used according to the first variant.

The ones in the 12 to 14th As already mentioned, the variant shown represents a particularly preferred embodiment for designing the cover 80 and the associated optical system for influencing the light output. Another advantage of the mechanical decoupling between the cover 80 and optics 88 is also due to the fact that the optics as well as the underlying LED boards 130 are less prone to impact and therefore damage due to vibrations - e.g. when transporting the light 1 - can be avoided.

Of course, when realizing the covers 70 , 80 however, additional variations can also be made. These relate, for example, to the design of the optical elements for influencing the light, for example as an alternative to the lenses shown 90 other light-refracting or light-scattering elements or structures could also be used. One should think in particular of suitable prism structures or lenses designed in some other way, which could possibly also be arranged on the underside, that is to say the light-emitting surface of the cover. Furthermore, additional foils could optionally be inserted in order to influence the light output in the desired manner. In principle, the optics can have optical materials such as scattering particles or conversion particles, optical structures such as a roughened surface, and / or optical elements such as lenses or a lens array.

The choice of material can also be adapted to the desired light output, with a choice of material influencing the color tone or the color temperature of the light output being particularly conceivable. In the second variant, there is also the possibility of the cover 80 and the optics 88 from different materials. In this case it can be used in particular for the cover 80 a material that is particularly chemically resistant can be chosen, while the optics 88 is formed from a material which can be used in a particularly suitable manner to influence the light.

Finally, it would also be conceivable to use the cover 70 , 80 designed such that they are an integral part of the holding element 50 is. In particular in the event that another separate lens plate is used to influence the light 88 as with the variant of the 12 to 14th is provided, in spite of everything, the advantage can be achieved that, on the one hand, the receiving space B or the chamber for the LED lamps is permanent 130 is sealingly enclosed and on the other hand the lenses 90 are correctly positioned in relation to the LEDs.

In the cases described so far, it was assumed that the interaction with the seal 40 takes place in that the corresponding margins or edges 53 , 74 or 84 of the different covers 52 , 70 or 80 in the seal 40 penetrate, but not be connected to this, so that a removal of the retaining element 50 and the covers 70 or. 80 is possible again at a later date. However, it could also be provided that the sealing material 40 with the corresponding margins or edges 53 , 74 or 84 is glued, whereby the sealing effect can optionally be increased. In this case, however, the lamp has to be opened later 1 eg for maintenance purposes only possible with destruction of the seal.

Another function of the holding element is that it allows cooling air to flow through the passage openings 30th of the luminaire housing 10 enables. For this purpose, the holding element 50 the through openings 30th of the housing 10 corresponding openings 60 on, each from surrounding webs 61 are enclosed. These webs 61 are essentially transverse to the section of the holding element that has them 50 oriented, but aligned slightly inclined and aligned on their top with the through openings 30th of the luminaire housing 10 so that cooling air ducts are formed which widen slightly downwards and which, as already mentioned, are on both sides of the receiving areas 20th , 25th for the LED bulbs 130 as well as for the control gear 120 are trained.

The bridges 61 can the through openings 30th of the luminaire housing 10 delimit laterally inside or outside and, in a preferred embodiment, bear against them. In this way, a corresponding splash guard can be provided so that no water splashes into the space between the holding element 50 and cover 70 or. 80 device, which is particularly important in the area of the seal 40 would be disadvantageous. In order to still be able to discharge water that penetrates, for example in the holding element 50 Appropriate holes are provided through which water can drain from this limited space.

The thermal passage openings 30th can also be bent inwards or outwards all the way around, as shown in 8th is recognizable. On the one hand, this in turn promotes the stability of the entire component, i.e. the housing 10 . On the other hand, in particular for the holding element 50 edges of the thermal passage openings that are bent over 30th with the bars described above 61 of the holding element 50 form a preferably continuous cooling air duct that is closed at the edge.

The side walls widening like a funnel downwards 13 of the luminaire housing 10 each form laterally below the adjacent through-openings 30th an air inflow area and thus contribute to the fact that a total of one is different from the light sources 130 away widening air inflow area is formed, so that despite the relative to the height of the light 1 large area an efficient flow of cooling air is made possible. The during the operation of the lamp 1 occurring heat can through this - in 8th schematically indicated by arrows - air flows can be efficiently removed.

It is also advantageous that the receiving areas 25th for the LED lamps - as well as the central receiving area 20th - tub-like to the rear of the housing 10 are formed above. The cooling air channels extending to the side of this recess now ensure that the receiving area protruding to the rear 25th for the bulbs 130 can be flowed against by the resulting air flow, thus, for example, continuously dust deposits on the back of the lamp 1 to avoid.

The holding element 50 is preferably designed as a one-piece plastic part and is in particular manufactured using an injection molding process. Depending on whether the covers 70 or. 80 integral part of the holding element 50 should be, a two-component injection molding process can then optionally be used. This is preferably at least for the cover 52 the use of a chemically resistant material is provided in order to protect the lighting components arranged in room A as well as possible. Furthermore, the holding element would also be conceivable 50 multi-part design, which, however, leads to an increase in the number of components and is accordingly less preferred.

Finally, the aforementioned cross-connection between the two receiving areas should be 20th , 25th for the control gear 120 and the LED bulbs 130 be explained, which is responsible for the fact that on the one hand the respective receiving spaces A, B are appropriately sealed and on the other hand there is an electrical connection between the areas A and B, which enables the LED lighting means 130 through the control gear 120 can actually be supplied with electricity.

For this purpose, it is initially provided that the respective receiving areas 20th or. 25th enclosing wave-like sealing structures 35 , which are the surrounding depressions 36 to accommodate the seals 40 form, at one end of the receiving areas 20th , 25th through a transverse duct section open to the interior of the luminaire 37 are interrupted, the channel section 37 each of the two recording areas 20th , 25th connects to each other or two receiving areas to be connected to each other 20th , 25th a canal section 37 divide.

In 5 is this transverse depression forming the channel section with the reference number 37 provided, whereby in a first variant it would be conceivable that a supply cable in this recess 37 running from the one receiving area 20th to the neighboring recording area 25th is guided and then through the seal 40 is covered. This measure requires that the supply cable be installed before the seal is applied 40 in the luminaire housing 10 is laid in a suitable manner, which would be possible in principle, but is not absolutely desirable for manufacturing reasons.

It would therefore be advantageous to create a sealed channel which also allows the supply cables to be passed through at a later point in time. In order to make this possible, a particularly advantageous variant provides that a channel-forming component 100 which is used in the 15th and 16 is shown. This component 100 , which is preferably made from a plastic injection-molded part, has in particular an elongated hollow cylinder 101 on, the side walls facing outward at its two front ends 102 having. Also in the middle of the cylinder 101 two opposing locking arms 103 provided that an attachment of the component 100 on the lamp housing 10 enable. These structural sections 102 , 103 So act with corresponding structural sections of the luminaire housing 10 together to the channel-forming component 100 with the luminaire housing 10 to connect mechanically, they extend along the sealing structure 35 to get in two-dimensional Attachment with the seal 40 to stand and promote a distribution of the on the sealing structure 35 liquid applied sealing material in the channel section 37 into it, as will be explained below.

The function of the channel-forming component 100 is based on the 17th to 19th recognizable, which show in individual steps how, according to the preferred embodiment, a seal between two adjacent receiving areas 20th , 25th takes place and in spite of everything it is ensured that they are connected to one another by a transverse channel in such a way that a supply cable can subsequently be passed through.

17th shows an initial state in which neither the channel-forming component nor the seal is already in the luminaire housing 10 were introduced. There are only the two recording areas 20th and 25th recognizable which by the wave-like sealing structures 35 are enclosed in a ring-like manner, although the above-mentioned transverse channel section 37 both ring-like structures interrupts to the two receiving areas 20th and 25th to connect with each other.

In a first step, which in 18th is shown, is now the channel-forming component 100 in the channel section 37 inserted so that the hollow cylinder 101 within the duct section 37 runs and with its ends in the two receiving areas 20th and 25th flows out. A precisely positioned locking of the channel-forming component 100 in this position is with the help of the two locking arms 103 achieved which in corresponding locking structures of the lamp housing 10 intervention.

In this case it can also be seen that the side walls 102 of the channel-forming component 100 each the inner walls of the ring-like recess 36 continue to pick up the seal later. This makes it possible in the final step, which is in 19th is shown, the sealing material 40 in the surrounding recess 36 to be introduced, ring-like and completely closed, without the risk of the sealing material hitting the end regions of the hollow cylinder 101 the channel-forming component closes. The channel-forming component 100 is then from the seal 40 in the area of or along the sealing structure 35 surrounded at least partially sealing.

As in 19th is shown, the sealing material can be the hollow cylinder 101 of the channel-forming component 100 be applied completely overlapping, so that the holder of the channel-forming component 100 on the housing 10 is additionally improved. Possibly. could thus also on the locking arms 103 dispensed with or another type of attachment for this component 100 , e.g. glue, can be selected. In this case, all are ring-like seals 40 via the material covering the channel section 41 integrally connected to each other, which in turn is facilitated by the fact that all sealing structures 35 are in one plane as explained above.

The extra material 41 also fills the channel section 37 completely and accordingly also contributes to sealing. It is crucial that ultimately - as in 19th recognizable - both recording areas 20th , 25th of the luminaire housing 10 completely ring-like from a seal 40 are enclosed and accordingly in the manner described above with the holding element 50 or the cover 70 or 80 can work together to enclose the receiving spaces A and B in a sealing manner. About the hollow cylinder 101 of the channel-forming component 100 However, both areas A and B are then connected to one another in such a way that even after the sealing material has been applied 40 the passage of a supply cable is still possible. This in turn simplifies the assembly of the lamp 1 overall relieved, despite everything the lighting components 120 , 130 are reliably and securely protected against external influences. A corresponding connection could be made with the aid of the component 100 also between the two receiving spaces B for the lamps 130 created, provided that a corresponding channel is required due to the selected cable connections.

The measures described thus contribute overall to the creation of a luminaire which, as desired, is able to generate and emit light with high intensity, although the associated material and assembly costs are significantly reduced compared to previously known solutions .

The concept according to the invention can easily be extended to other shapes or sizes for the lamp. There is the possibility of expanding the number of chambers or spaces for accommodating operating devices or lighting means as desired, with the particular possibility, as in the 20th and 21st shown to realize a luminaire housing which has a total of four receiving areas for light sources and two receiving areas for operating devices.

Essentially, the one in the 20th and 21st luminaire variant shown 200 represents a duplication of the concept described in the previous figures, with only the housing 201 must be made available in the extended form, but identically designed holding elements 50 can be used, with now two holding elements 50 be used arranged one behind the other in the longitudinal direction.

In this case too - according to the representation of 20th - Preferably provided that the lamp 200 has only a single sealed connection for an external power supply cable. This requires that the two receiving areas for the operating devices must in turn be connected to one another in such a way that a connection cable can be laid. Accordingly, the use of a recess is again preferred to connect these two areas 205 together with the 15th to 19th explained channel-forming component 100 provided which the two areas of the lamp located one behind the other in the longitudinal direction 200 connects with each other.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 2014/086770 A1 [0003, 0019, 0020]

Claims (17)

Light (1) having: • lamps, • a luminaire housing (1) with an area (25) for receiving the lighting means (130), the area (25) being surrounded by a seal (40) so that it is completely closed, • a cover (70, 80) which stretches over the area (25) and rests against the seal (40) in a closed circumferential manner in order to form a closed space (B) with the lamp housing (10), the cover (70 , 80) has optics for influencing the light of the illuminants (130), • a frame-like holding element (50), the holding element (50) being connected to the lamp housing (1) in such a way that it presses the cover (70, 80) into contact with the seal (40). Shine after Claim 1 , wherein the luminaire housing (1) has a further area (20, 25) for receiving electrical and / or electronic lamp components, the further area (20, 25) being surrounded by a further seal (40), and the The lamp (1) also has: • a further cover (52, 70, 80) which spans the further area (20, 25) and rests against the further seal (40) in a closed circumferential manner in order to be able to connect with the lamp housing (1) to form a closed space (A, B), • a further frame-like holding element (50), the further holding element (50) being connected to the lamp housing (1) in such a way that the further cover (52, 70, 80) is in System presses against the seal (40). Shine after Claim 1 and 2 , wherein the holding element (50) and the further holding element (50) are formed integrally with one another. Luminaire according to one of the preceding claims, wherein the luminaire component has lighting means and the associated further cover (52, 70, 80) has optics for influencing the light of the lighting means (130), and / or wherein the lighting component has operating components for operating the lighting means, such as has a converter, and the associated cover (52, 70, 80) has an opaque hood. Luminaire according to one of the preceding claims, wherein the holding element (50) has support or bearing areas (57) via which the holding element (50) presses the cover (70, 80) into contact with the seal (40). Shine after Claim 5 , wherein the support or support areas (57) are distributed circumferentially, preferably evenly distributed, or provided closed on the circumference, and / or wherein the support or support areas (57) extend in a plane, preferably in a plane transverse or orthogonal to a Pressing direction for pressing the cover (70, 80) into contact with the seal (40). Luminaire according to one of the preceding claims, wherein the holding element (50) and the associated cover (52, 70, 80) are formed integrally with one another, preferably by means of a two-component injection molding process. Luminaire according to one of the preceding claims, the optics having optical materials such as scattering particles or conversion particles, optical structures such as a roughened surface, and / or optical elements such as lenses (90) or a lens array. Luminaire according to one of the preceding claims, further optical elements for influencing the light emitted by the lighting means are provided in the closed space (B), preferably between optics and lighting means. Luminaire according to one of the preceding claims, wherein the cover (80) has holding structures (85, 86) for the defined mounting of an optical element (88). Luminaire according to one of the preceding claims, wherein the cover (52, 70, 80) has a circumferential edge (72, 82) which is in circumferentially closed, sealing contact with the seal (40), preferably towards the seal (40) runs out in order to be in sealing contact with this and preferably to dip into the seal (40). Shine after Claim 11 , wherein the circumferential edge (72, 82) has a U-shaped cross section, with a leg (73, 83) tapering towards the seal (40), a connecting leg extending transversely thereto and a connecting leg with the rest of the cover (52 , 70, 80) connecting inner thigh. Luminaire according to one of the preceding claims, wherein the luminaire housing (1) has one or more through openings (30) which preferably extend adjacent and further preferably along the edge of the area or areas (20, 25). Shine after Claim 13 wherein a circumferentially closed edge delimiting the respective through opening (30) extends transversely to the section of the lamp housing that has it. Shine after Claim 13 or 14th wherein the through openings (30) spanning portions of the holding element (50) with the through openings (30) have openings (60) aligned. Luminaire according to one of the preceding claims, wherein the holding element (50) has fastening sections such as through openings or latching structures for preferably detachable fastening to the luminaire housing (1), optionally by means of separate fastening means, such as screws. Luminaire according to one of the preceding claims, wherein the luminaire housing (1) is made from sheet metal, preferably in a deep-drawing process.

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